JoeNugget
JoeNugget JoeNugget
  • 18-10-2021
  • Mathematics
contestada

Solve the simultaneous equations 3x + 2y = 10 3x - y = 13​

Respuesta :

Ahisha0o0
Ahisha0o0 Ahisha0o0
  • 18-10-2021

Step-by-step explanation:

3x+2y=10 ----- a

3x-y=13 ----b

(b-a)

3x-y-(3x+2y)=13-10

3x-y-3x-2y=3

-3y=3

y=-1

x value from b ;

3x-y=13

3x-(-1)=13

3x+1=13

3x=12

x=4

Answer Link

Otras preguntas

Im not sure with my homework the question is:describe ancient egypt's major river, using the words delta and cataract. Any help please?
The name of a water solution of hydrogen fluoride, HF(g), is (A) fluoric acid (B) fluorous acid (C) perfluoric acid (D) hydrofluoric acid (E) hypofluorous
why did Russian settlers come to California in the early 1800s
the rule for this number sequence is (n+3) x 2 where n is the previous number in the sequence.6   18  42 ? type the missing numberplease
Wastes are excreted from mollusks via the a. outer shell. b. nerve fibers. c. radula. d. nephridia.
In the 1940s and 1950s, scientists did experiments to determine the molecule responsible for heredity. Their experiments demonstrated that the molecule that enc
Which element has properties most similar to Bromine? A) F B) Kr C) S D) Se
what is the square root of 600?
The Indus, Ganges, and Brahmaputra were important to ancient India because they were (1) high mountain ranges that protected India from invasion (2) great river
In the 1940s and 1950s, scientists did experiments to determine the molecule responsible for heredity. Their experiments demonstrated that the molecule that enc